Pith Number

pith:S52BL5KI

pith:2023:S52BL5KIXYY6OXFBQIHCQYOEMI

not attested not anchored not stored refs pending

Super-Resolved Image of M87 Observed with East Asian VLBI Network

Fumie Tazaki, Guang-Yao Zhao, Hyunwook Ro, Ilje Cho, Kazuhiro Hada, Kazunori Akiyama, Lang Cui, Mareki Honma, Motoki Kino, Ru-Sen Lu, Yoshinori Yonekura, Yosuke Mizuno, Yuzhu Cui, Zhi-Qiang Shen

arxiv:2303.01048 v1 · 2023-03-02 · astro-ph.HE · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S52BL5KIXYY6OXFBQIHCQYOEMI}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T05:47:26.301148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

977415f548be31e75ca1820e2861c4623f08b6483e03902f7860145c6c603756

Aliases

arxiv: 2303.01048 · arxiv_version: 2303.01048v1 · doi: 10.48550/arxiv.2303.01048 · pith_short_12: S52BL5KIXYY6 · pith_short_16: S52BL5KIXYY6OXFB · pith_short_8: S52BL5KI

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/S52BL5KIXYY6OXFBQIHCQYOEMI \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 977415f548be31e75ca1820e2861c4623f08b6483e03902f7860145c6c603756

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14fedafd40ab2612c2f50f491a465b528ab7501589d5a134d1e13a563ad5c36d",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-03-02T08:02:59Z",
    "title_canon_sha256": "a093563fc4cc526a963d31eeae6d7252bca0bd17a8f7ecdbc2760b47f15beb24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.01048",
    "kind": "arxiv",
    "version": 1
  }
}